There is no audible compromise in removing impulse noise the way Sweet Vinyl do it as far as I can hear. For peace of mind they allow you to monitor alone the artefacts being removed for test purposes and unless you apply completely over the top levels of processing there is no detectable trace of anything being removed except ticks and pops. The SC-1 has also has no effect on matrix decoding (other than to make it less annoying to listen too)!I've been very wary of this type of device. My thinking is that if you take out the noise, you also take some of the music with it. I wouldn't be willing to make that compromise. I'd also wonder what effect it has on matrix decoding.